TP-Link TL-WA855RE login.json Improper Authentication Privilege Escalation Vulnerability
April 28th, 2020
Vulnerability Details
This vulnerability allows network-adjacent attackers to escalate privileges on affected installations of TP-Link TL-WA855RE Wi-Fi extenders. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.
The specific flaw exists within the first-time setup process. The issue results from the lack of proper validation on first-time setup requests. An attacker can leverage this vulnerability to reset the password for the Admin account and execute code in the context of the device.
Additional Details
Fixed in version TL-WA855RE(US)_V4_200403
Disclosure Timeline
- 2020-03-15 - Vulnerability reported to vendor
- 2020-04-28 - Coordinated public release of advisory
Credit
Anonymous
